erik vogan [EMAIL PROTECTED] wrote:
> > the reason i even bother to include the processor info is because,
> > as i understand it, the change to the EZ allowed the move up from 2
> > bpp to 4 bpp on the IIIx (and presumeably the IIIxe). thus, if i know
> > the IIIxe has a dragonball EZ i know it has a 4 bpp grayscale screen.
> > correct ?
Yes and No. Knowing the CPU determines if you can *potentially* get 4 bpp. You've
got to have OS cooperation to get there without bashing registers. Check
http://oasis.palm.com/devzone/knowledgebasearticle.cfm?article_id=1532 for Palm's
official listing of the hardware configurations. Note that the IIIe is an EZ device
but is stuck at PalmOS 3.1 (non-flashable ROM). Your best bet (with PalmOS 3.0) or
greater is to use the WinScreenMode call to determine how many bpp are available.
If you want 4 bpp (on an EZ) without bashing registers you need PalmOS 3.3 or greater.
And if you can flash up to PalmOS 3.3, you might as well get PalmOS 3.5, as it gives
you better control over the graphics.
> how do the screens on the palm V and the palm III > compare.
No comparison. Palm III is ok, Palm IIIc, IIIx, V, Vx are much better. After the
Palm III & VII, all the Palm screens seem to have improved. Unfortunately there are
issues with the palette and grayscale on the Palm III (and IIIx) that make a grayscale
more complicated - the grays don't look evenly distributed (to my eye) at a reasonable
contrast level unless you bash registers to modify the palette (not recommended by
Palm). If you're doing grayscale for a Palm III, you need to test on a hardware III
to get it right. Same for a IIIx. PalmOS 3.3/3.5 seems to have fixed the palette
problem for the Palm V. These are my impressions - others may have different
impressions.
Hope that helps.
trib
--------------------------------------------------
David Tribble, INRI Hawaii
(808) 625 2118 (v) (808) 625 6315 (f)
--
For information on using the Palm Developer Forums, or to unsubscribe, please see
http://www.palm.com/devzone/mailinglists.html
